I have this setup: A35->Q1mk2->HD6xx via balanced - cannot hope for better. I use a custom WMport-to-microUSB cable, the L27 also works the same (I have both, but had bought the custom one earlier, so it's stayed attached) So go for it!
The A35 takes at least a 400GB card (I have it) reportedy 1TB cards also work well. There is/might be a lmit on the number of files, though, I'm not sure about it.
Thanks Roger for your your very fast response and your impressions!
Is it still possible to use the equalizer? And will the q1 read DSD files properly?